132
Participants
Start Date
April 30, 1995
Primary Completion Date
June 30, 2006
Study Completion Date
June 30, 2006
first prescription of montelukast
The index event (intervention) was defined as the first prescription for montekuast (leukotriene receptor antagonist) occurring in patient's medical history that established a 12-month pre-index and three consecutive 12-month post-index periods.
first prescription of salmeterol
The index event (intervention) was defined as the first prescription for salmeterol (long-acting β2-agonist) occurring in patient's medical history that established a 12-month pre-index and three consecutive 12-month post-index periods.
Medical University of Lodz
OTHER